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Old 12th March 2010, 15:15   #91
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Update:

Have just received a torque damper kit custom made for my Elantra.

In the second pic torque damper as attached in another vehicle.

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Elantra Petrol Stage 2 Complete!!!-imgp4096-large.jpg  

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Old 12th March 2010, 15:40   #92
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long time vivek, we need an update.
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Old 25th March 2010, 03:02   #93
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Yippee! Got myself a used Apexi S-ITC (Super Ignition Timing Controller), via e-bay! Advanced timing just 3-6 degrees across the rev range. The effect is HUGE! The midrange torque has become MASSIVE!

The Apexi S-ITC is a previous generation controller.

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Elantra Petrol Stage 2 Complete!!!-imgp4114.jpg  

Elantra Petrol Stage 2 Complete!!!-imgp4119.jpg  

Elantra Petrol Stage 2 Complete!!!-imgp4120.jpg  

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Old 25th March 2010, 13:57   #94
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Nice!!!! Congrats!!!!

So whats in store for stage 2??

do you plan to do a dyno now??

Have fun and drive safe...
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Old 27th March 2010, 03:57   #95
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Quote:
Originally Posted by KSM-Vtec View Post
Nice!!!! Congrats!!!!

So whats in store for stage 2??

do you plan to do a dyno now??

Have fun and drive safe...
Yup! A dyno will be on the cards soon! Stage 2 complete! Still experimenting with the timing!
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Old 25th November 2010, 13:13   #96
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I see that you have done Somender Head Grooves / Grooving in your pictures posted.

Did you shave the head after doing it? Has it made a difference in the performance /mileage?

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Old 24th March 2011, 08:18   #97
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Sorry for the late reply....yes, i did shave the head a bit (on the Sonata). It has increased the compression ratio very slightly. So there is a bit more power & torque. I do feel the engine is smoother & revs rise more quickly. I can stay in longer in a higher gear now.


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I see that you have done Somender Head Grooves / Grooving in your pictures posted.

Did you shave the head after doing it? Has it made a difference in the performance /mileage?

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Old 24th March 2011, 12:11   #98
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Default Re: Elantra Petrol Stage 2 Complete!!!

No info about the Singh grooves?

Who did the head work?
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Old 24th March 2011, 15:29   #99
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Pranav....i went all the way from Pune to Mysore JUST to get the whole thing done from Mr. Somender Singh himself. He also did the radiusing of the valves, porting of the intake & exhaust etc. The signature.."sing" in the pic is of the man himself!


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No info about the Singh grooves?

Who did the head work?

Last edited by 1self : 24th March 2011 at 15:35.
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Old 24th March 2011, 16:44   #100
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1self, i've always been intrigued by this grooving technique and i've been wondering if the results gained are because of the grooving or because of increasing the compression ratio which is always done alongwith grooving. Your thread made me take a look into Somender Singh's website yet again and there i have found this interesting test result.
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SOMENDER-SINGH.com - ARAI Dyno Test

In the test result we can see that after completing the grooving the engine gained a bit of torque but lost on peak power (the IAT is nearly the same for test 1 and 3). Another interesting fact is that the head used for test 3 seems to be different.
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Old 25th March 2011, 06:29   #101
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Sankar, one actually LOSES a BIT of compression after grooving, as there is more space in the compression area due to the grooves. The shaving of the head gets it back to original compression.
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Old 25th March 2011, 08:41   #102
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Yep thats right. But i feel on low compression engines a bump in compression, not as high as to induce knock, would yield a similar result. My exp is limited to motorcycles though.
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Old 25th March 2011, 10:03   #103
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Sankar, the whole point of doing the exercise was to give knock resistance when i go FI on the Sonata. People who have tried this on high boost drag cars in the US were amazed with the knock tolerence of gooved engines all else being the same! The engine has some extra power after grooving. Seat of the pants feeling. My car already has 10:1 compression.

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Yep thats right. But i feel on low compression engines a bump in compression, not as high as to induce knock, would yield a similar result. My exp is limited to motorcycles though.
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Old 27th March 2011, 21:41   #104
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Where & who installed the Apexi S-ITC ? You were at tune up plus yesterday in your elentra right ? I never knew u owned a elentra too.
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Old 28th March 2011, 03:44   #105
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Default Re: Elantra Petrol Stage 2 Complete!!!

I hope you won't be using the ignition controller when you go FI. What engine management are you planning on using?
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